<template>
<div v-if="Object.keys(detailInfo).length !== 0" class="goods-info">
  <div class="info-desc clear-fix">
    <div class="start"></div>
    <div class="desc">{{detailInfo.desc}}</div>
    <div class="end"></div>
  </div>
  <div class="info-key">{{detailInfo.detailImage[0].key}}</div>
  <div class="info-list">
    <img v-for="(item, index) in detailInfo.detailImage[0].list" :key="index" :src="item" @load="imgLoad" alt />
  </div>
</div>
</template>

<script>
export default {
  name: 'DetailGoodsInfo',
  props: {
    detailInfo: {
      type: Object,
      default () {
        return {}
      },
    },
  },
  data() {
    return {
      counter: 0,
      imagesLength: 0,
    }
  },
  methods: {
    imgLoad() {
      // 判断, 所有的图片都加载完了, 那么进行'一次'回调就可以了.if就是为了只回调一次
      //++this.counter相当于this.counter+=1
      if (++this.counter === this.imagesLength) {
        this.$emit('imageLoad')
        //sconsole.log('发射时间imgLoad')
      }
    },
  },
  watch: {
    detailInfo() {
      // 获取图片的个数，所有图片都加载完了再计算高度
      this.imagesLength = this.detailInfo.detailImage[0].list.length
    },
  },
  created() {
    //console.log(this.detailInfo)
  },
}
</script>

<style scoped>
.goods-info {
  padding: 20px 0;
  border-bottom: 5px solid #f2f5f8;
}

.info-desc {
  padding: 0 15px;
}

.info-desc .start,
.info-desc .end {
  width: 90px;
  height: 1px;
  background-color: #a3a3a5;
  position: relative;
}

.info-desc .start {
  float: left;
}

.info-desc .end {
  float: right;
}

.info-desc .start::before,
.info-desc .end::after {
  content: '';
  position: absolute;
  width: 5px;
  height: 5px;
  background-color: #333;
  bottom: 0;
}

.info-desc .end::after {
  right: 0;
}

.info-desc .desc {
  padding: 15px 0;
  font-size: 14px;
}

.info-key {
  margin: 10px 0 10px 15px;
  color: #333;
  font-size: 15px;
}

.info-list img {
  width: 100%;
}
</style>
